PlainVitamins

Zma

by SNAC Nutrition · capsule · 90 veg capsules

  • On the market (NIH)
  • UPC 0 94922 83472 0
  • DSLD label 292304
  • Serving 3 capsules (for Men); amounts per 2 capsules
  • 30 servings

Zma by SNAC Nutrition lists 6 ingredients, 6 with an amount per serving of 2 capsules, such as 7 mg of vitamin B6, 300 mg of magnesium, 20 mg of zinc and 10.5 mg of vitamin B6. Its current label entered the NIH Dietary Supplement Label Database on July 18, 2023.

What is in Zma?

Each row as the label prints it, per serving of 2 capsules. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Zma: Supplement Facts rows against the market (DSLD label 292304, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin B6as Pyridoxine Hydrochloride7 mg412%Vitamin B6 in ZMA against 15,277 products17.5 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg17.5 mg

Higher than 71% of 15,277 products listing vitamin B6 (median 6 mg).

Magnesiumas Magnesium Aspartate, Magnesium Oxide300 mg71%Magnesium in ZMA against 14,003 products750 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg750 mg

Higher than over 99% of 14,003 products listing magnesium (median 86 mg). 2.1 times the adult UL a day.

Zincas Zinc Aspartate, Zinc Mono-L-Methionine Sulfate, Zinc Oxide20 mg182%Zinc in ZMA against 13,186 products50 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg50 mg

Higher than 97% of 13,186 products listing zinc (median 11 mg). 1.3 times the adult UL a day.

Vitamin B6as Pyridoxine Hydrochloride10.5 mg618%
Magnesiumas Magnesium Aspartate, Magnesium Oxide450 mg107%
Zincas Zinc Aspartate, Zinc Mono-L-Methionine Sulfate, Zinc Oxide30 mg273%

Source: NIH ODS Dietary Supplement Label Database, label 292304 (entered July 18, 2023), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • At 1 serving a day, the most its directions give, the label lists 750 mg of magnesium, 2.1 times the adult Tolerable Upper Intake Level.
  • At 1 serving a day, the most its directions give, the label lists 50 mg of zinc, 1.3 times the adult Tolerable Upper Intake Level.

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

6 products list the very same ingredients; the nearest amounts come first.

  • ZmaNutricost · off the market same ingredients
  • ZMA 490 mgNutricost · off the market same ingredients
  • ZmaMDLogic Sport same ingredients
  • ZmaNOW Sports same ingredients
  • ZmxInnovaPharm same ingredients
  • Zmx2ALLMAX same ingredients

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Suggested Use: Take 3 capsules daily for men and 2 capsules daily for women, preferably on an empty stomach, 30-60 minutes prior to bedtime. For best results, avoid taking with foods or supplements containing calcium.
Warnings
Warning: Do not use if pregnant, nursing, or under the age of 18.
Consult your doctor before using this or any dietary supplement. Immediately discontinue use and contact your doctor if any adverse reactions occur.
Keep out of reach of children.
To report any serious adverse events, please call 800-697-2086 or email info@snac.com.

Source: label statements in DSLD label 292304.

What else is on the label?

Other ingredients: Hypromellose.

How many labels does Zma have?

3 labels are on file under this name since January 25, 2020: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 292304 (current) Entered July 18, 2023 · on the market · 90 veg capsules · UPC 0 94922 83472 0
  2. Label 258532 Entered January 22, 2022 · off the market July 29, 2022 · 90 veg capsules · UPC 0 94922 83472 0
  3. Label 211874 Entered January 25, 2020 · off the market August 10, 2021 · 90 veg capsules · UPC 0 94922 83472 0

DSLD also links this label to: Zma (image difference, same product).

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names SNAC System, Inc. (distributor), San Carlos, CA. All SNAC Nutrition products.

Where next?